The invention provides a filter element testing system. The filter element testing system comprises a test channel, a filter element mounting assembly, a blowback system and a monitoring control system, wherein the filter element mounting assembly is arranged in the test channel, the filter element mounting assembly comprises a first mounting part, a second mounting part and a third mounting partwhich are sequentially arranged in an airflow direction, and the first mounting part, the second mounting part and the third mounting part are respectively used for detachably mounting a filter element; the blowback system comprises a blowback air source, a blowback pipeline and a blowback control valve arranged on the blowback pipeline and used for controlling on-off of the blowback pipeline, oneend of the blowback pipeline is connected with the blowback air source, and the other end of the blowback pipeline extends to the second mounting part and the third mounting part; and the monitoringcontrol system comprises a controller, a display, an air inlet parameter acquisition unit and a filtering parameter acquisition unit. By configuring a plurality of filter elements of different models,the filter element testing system can perform filtering tests on air quality of different regions, and can select gas turbines suitable for different regions through comparison to perform system filter element configuration, so as to select reasonable and better filter element models.